Abstract: the Lower Es3 Sub-member (Bonan Subsag) and Fu2 Member (Subei Basin) represent typical mixed sedimentary shale reservoirs in eastern China. While both share common characteristics such as multi-source hydrocarbon supply, source-reservoir coexistence, and micro-migration of hydrocarbons to dominant layers, they exhibit significant differences in burial mode, thermal evolution degree, lithofacies development, and reservoir properties. These differences have restricted the in-depth study of shale oil enrichment patterns in continental mixed sedimentary shale reservoirs.This study selected the two sets of typical continental mixed shale reservoirs as research objects. Based on a systematic review of previous research methods and findings, a variety of experimental techniques were comprehensively employed to conduct comparative studies on reservoir differences and analyze enrichment mechanisms, thereby clarifying the shale oil enrichment patterns.The results show that: ①Burial mode affects the basic reservoir characteristics by controlling mineral composition and sedimentary structure types;②Vitrinite reflectance (Ro) not only determines oil-bearing property and occurrence characteristics but also continuously modifies reservoir space types through thermal evolution;③ Differences in reservoir space control the direction of hydrocarbon micro-migration, while the oil-bearing property and hydrocarbon proportion of surrounding laminae affect the initiation and intensity of micro-migration. Furthermore, the shale oil enrichment patterns of dominant lithofacies in the two study areas are revealed: the Lower Es3 Sub-member (Bonan Subsag) is dominated by "mud-generating and limestone-storing" and "mud-generating and sand-storing" modes, while Fu2 Member (Subei Basin) is characterized by "mud-generating and dolomite-storing" and "mud-generating and sand-storing" modes.Appropriate maturity, sufficient organic matter supply, high macropore proportion, and a well-developed pore-fracture system are the core controlling factors for shale oil enrichment. A hydrocarbon allocation effect exists within lamina assemblages that meet the above conditions—light free hydrocarbons can micro-migrate to adjacent laminae with enrichment potential and then migrate laterally into macropores for accumulation. The shale oil enrichment pattern constructed in this study provides a feasible framework for the analog evaluation of mixed sedimentary shale reservoirs and deepens the understanding of the enrichment and high-yield mechanism of shale oil under source-reservoir coupling control.